2531912 has 16 divisors (see below), whose sum is σ = 5026860. Its totient is φ = 1191424.

The previous prime is 2531891. The next prime is 2531917. The reversal of 2531912 is 2191352.

It can be written as a sum of positive squares in 2 ways, for example, as 2033476 + 498436 = 1426^2 + 706^2 .

It is not an unprimeable number, because it can be changed into a prime (2531917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9173 + ... + 9444.

2^2531912 is an apocalyptic number.

It is an amenable number.

2531912 is a deficient number, since it is larger than the sum of its proper divisors (2494948).

2531912 is a wasteful number, since it uses less digits than its factorization.

2531912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18640 (or 18636 counting only the distinct ones).

The product of its digits is 540, while the sum is 23.

The square root of 2531912 is about 1591.1982905974. The cubic root of 2531912 is about 136.2959242548.

It can be divided in two parts, 2531 and 912, that added together give a palindrome (3443).

The spelling of 2531912 in words is "two million, five hundred thirty-one thousand, nine hundred twelve".